<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ page import="java.util.* " %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%!
public String name="My name is JSP and Servlet"; 
%>
字符串长度为：<%=name.length() %>
<br>
字符串第一个字符：<%=name.trim().substring(0, 1) %>
<br>
字符串最后一个字符：<%=name.trim().substring(name.trim().length()-1, name.trim().length()) %>
<br>
字符串第一个单词：<%=name.split(" ")[0] %>
<br>
字符串JSP的位置：<%=name.indexOf("JSP")%>
<br>
</body>
</html>